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Article: A combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst

TitleA combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst
Authors
KeywordsComposites
Environment
Photo-Fenton catalysts
Porous media
Remediation
Issue Date2009
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/seppur
Citation
Separation And Purification Technology, 2009, v. 67 n. 2, p. 233-237 How to Cite?
AbstractA novel technique combining photo-doping and metal-organic chemical vapor deposition (MOCVD) is used to synthesize heterogeneous iron (Fe) catalyst supported on TiO2/SiO2 substrate. The TiO2/SiO2 substrate is obtained through MOCVD method to disperse TiO2 onto silica gel and then iron is coated onto the substrate by photo-doping. The developed catalyst, Fe/TiO2/SiO2, is characterized by various techniques, including ICP-OES, XRD, XPS, and physisorption. It is found that the doped ferric ion is selectively deposited on the TiO2 layer of the catalyst surface without any significant change of the BET specific surface area. XPS spectrum further proves that the doped iron is in trivalent form and mainly distributed on the catalyst surface. The developed catalysts are evaluated in the photo-Fenton degradation on a dye pollutant, Orange II. Complete discoloration and 80% of mineralization can be achieved. A calcination step is required after the photo-doping in order to minimize the iron leaching during the photo-Fenton reaction. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/132372
ISSN
2014 Impact Factor: 3.091
2014 SCImago Journal Rankings: 1.171
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLam, FLYen_HK
dc.contributor.authorHu, Xen_HK
dc.contributor.authorLee, TMHen_HK
dc.contributor.authorChan, KYen_HK
dc.date.accessioned2011-03-28T09:23:49Z-
dc.date.available2011-03-28T09:23:49Z-
dc.date.issued2009en_HK
dc.identifier.citationSeparation And Purification Technology, 2009, v. 67 n. 2, p. 233-237en_HK
dc.identifier.issn1383-5866en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132372-
dc.description.abstractA novel technique combining photo-doping and metal-organic chemical vapor deposition (MOCVD) is used to synthesize heterogeneous iron (Fe) catalyst supported on TiO2/SiO2 substrate. The TiO2/SiO2 substrate is obtained through MOCVD method to disperse TiO2 onto silica gel and then iron is coated onto the substrate by photo-doping. The developed catalyst, Fe/TiO2/SiO2, is characterized by various techniques, including ICP-OES, XRD, XPS, and physisorption. It is found that the doped ferric ion is selectively deposited on the TiO2 layer of the catalyst surface without any significant change of the BET specific surface area. XPS spectrum further proves that the doped iron is in trivalent form and mainly distributed on the catalyst surface. The developed catalysts are evaluated in the photo-Fenton degradation on a dye pollutant, Orange II. Complete discoloration and 80% of mineralization can be achieved. A calcination step is required after the photo-doping in order to minimize the iron leaching during the photo-Fenton reaction. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/seppuren_HK
dc.relation.ispartofSeparation and Purification Technologyen_HK
dc.subjectCompositesen_HK
dc.subjectEnvironmenten_HK
dc.subjectPhoto-Fenton catalystsen_HK
dc.subjectPorous mediaen_HK
dc.subjectRemediationen_HK
dc.titleA combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalysten_HK
dc.typeArticleen_HK
dc.identifier.emailLam, FLY:kefrank@hku.hken_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.authorityLam, FLY=rp01470en_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.seppur.2009.03.010en_HK
dc.identifier.scopuseid_2-s2.0-67349136102en_HK
dc.identifier.hkuros162410-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67349136102&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume67en_HK
dc.identifier.issue2en_HK
dc.identifier.spage233en_HK
dc.identifier.epage237en_HK
dc.identifier.isiWOS:000266641400020-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLam, FLY=7102075931en_HK
dc.identifier.scopusauthoridHu, X=7404709975en_HK
dc.identifier.scopusauthoridLee, TMH=7501438815en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK

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